// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.

/* eslint-disable local-rules/dont-use-process */

import { globals, INodeProcess, isMacintosh, isWindows } from './platform';

let safeProcess: Omit<INodeProcess, 'arch'> & { arch: string | undefined };
declare const process: INodeProcess;

// Native sandbox environment
if (typeof globals.vscode !== 'undefined' && typeof globals.vscode.process !== 'undefined') {
    const sandboxProcess: INodeProcess = globals.vscode.process;
    safeProcess = {
        get platform() {
            return sandboxProcess.platform;
        },
        get arch() {
            return sandboxProcess.arch;
        },
        get env() {
            return sandboxProcess.env;
        },
        cwd() {
            return sandboxProcess.cwd();
        }
    };
}

// Native node.js environment
else if (typeof process !== 'undefined') {
    safeProcess = {
        get platform() {
            return process.platform;
        },
        get arch() {
            return process.arch;
        },
        get env() {
            return process.env;
        },
        cwd() {
            return process.env['VSCODE_CWD'] || process.cwd();
        }
    };
}

// Web environment
else {
    safeProcess = {
        // Supported
        get platform() {
            return isWindows ? 'win32' : isMacintosh ? 'darwin' : 'linux';
        },
        get arch() {
            return undefined; /* arch is undefined in web */
        },

        // Unsupported
        get env() {
            return {};
        },
        cwd() {
            return '/';
        }
    };
}

/**
 * Provides safe access to the `cwd` property in node.js, sandboxed or web
 * environments.
 *
 * Note: in web, this property is hardcoded to be `/`.
 */
export const cwd = safeProcess.cwd;

/**
 * Provides safe access to the `env` property in node.js, sandboxed or web
 * environments.
 *
 * Note: in web, this property is hardcoded to be `{}`.
 */
export const env = safeProcess.env;

/**
 * Provides safe access to the `platform` property in node.js, sandboxed or web
 * environments.
 */
export const platform = safeProcess.platform;

/**
 * Provides safe access to the `arch` method in node.js, sandboxed or web
 * environments.
 * Note: `arch` is `undefined` in web
 */
export const arch = safeProcess.arch;
